Use the <link> element as shown:
Where id is the predefined ID associated with the element you want to link to and text is the word or phrase that you want to be the active hyperlink.
Most topics within the meta information section have predefined IDs, so they do not allow author-defined IDs. The predefined IDs consist of the element name preceded by an underscore character. For example, the ID for the <copyright> topic is _copyright. (Case is not significant.)
The predefined IDs for the meta information topics are listed below:
Topics entered with the <otherfront> element can be linked to just like any normal topic in the topic hierarchy.
"Built-in IDs" lists the Help System predefined IDs.